html,
body,
#app {
    margin: 0px;
    height: 100%;
    font-size: 14px;
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    overflow: hidden;
    background-color: #E7ECF1;
}


/*解决由滚动产生的页面元素抖动问题*/

html {
    overflow-y: scroll;
}